Overview
Life Support Units CORVET coal sectioned with output of 3500 m3 / h and 7000 m3 / h are designed for the use in ventilation systems of nuclear power plants (NPPs) for highly effective cleaning of production facilities from aerosols, molecular iodine and its organic compounds as well as radioactive.
Corvet unit 315-7,1 is allowed to be used in nuclear power plants located in areas of seismic activity for devastating earthquakes with destructive intensity of 8 points by the MSK-64 scale.
Unit Description
Corvet unit 315-7,1 has a sectional design. The standardized sections are joint successively and sealed with each other using radiation-resistant sealant paste (drop-fog catcher, electric heater, fine and iodine cleaning filters). The sections are equipped with built-in modules (and take-out) providing air treatment and filtering, high-pressure fan GDP.
Corvette 315-7,1 section housings are mounted on supports of various design allowing to assemble the Corvet 315-7,1 installation of different height even by placing them on top of each other (two -storied layout). This arrangement saves production space and solves the problem for the formation of various performance settings (3500m3 / h, 2 pcs. Of 3500m3 / h 7000m3 / h) using the same universal sections. A uniting sewer (vertical or horizontal) should be used to form the unit of 7000m3 / h output by special consumer order.
Specifications
Specifications are shown in the table.
| Parameter, specifications | Corvet 315-7,1 |
Corvet 315-12,5 |
| Rated air capacity, m3/h | 3500 | 7000 |
| The cleaning efficiency at nominal air flow,% | ||
| - radioactive aerosols | 99,97 | 99,97 |
| - molecular iodine | 99,9 | 99,9 |
| - organic compounds of iodine (methyliodide-131) | 99 | 99 |
| Working temperature, °C | from -10 up to +150 | from -10 up to +150 |
| Relative humidity at the inlet, % | 100 (drops) | 100 (drops) |
| Drag flow medium, Pa * initial | 2400 | 2400 |
| - max allowable | 5000 | 5000 |
| Total capacity of the electric heaters, kW | 15 | 30 |
| Specified lifetime for housings | 50 years | 50 years |
| Designated overhaul, h | 40 000 | 40 000 |
| Average time to failure, not less, h | 8900 | 8900 |
| Average performance recovery time , no more than, h | 24 | 24 |
| Power and fan speed | 15 kW for 3000 r/min | 30 kW for 1500 r/min |
Key components and materials
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drop and fog catcher TC E.045.6943.14.03;
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iodine module TC E.045.6994.01;
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highly efficient aerosol filter FAS-V-3500-D04 OC 4.02.00.00.00.000 TC (sertified in OIT);
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sorbent VSK-5IK, TC 2568-374-04838763-2010.